(d) use; efficacy,cf. (b): mór a bhfeidhm i n-aimsir the
| d'fionnḟuaradh ceathra is daoine (of rivers),
Content. vi
71
. Cf. ní feidhm do an Ghaoidheilg do léaghadh ... gan
a bfios do bheith aige do mheabhair `without having them
by heart it is a vain effort for him to attempt [he will not be
able for] the reading of Irish'
O'Gr. Cat. 630.24
. bíd drong
... doitheagaisg ann, ionnus nach bí feidhm ... an bás do
bhagar orra so that it is no use threatening themTSh. 554
.
dogní f.¤ de (re), makes use of: is é feidhm do-nídís do
sheicheadhaibh na dtarbh,
Keat. ii 5441
. nachar bhfer
feadhma do dhéanamh re clogat é the man to use a helmetO'Gr. Cat. 510.26
.